Best open-weight family; self-host for privacy and price.
Llama 4 open weights make it the default for on-prem and private deployments. Fine-tune on your brand corpus, serve via Groq or Together.
Best for
Recommended workflow
Step 1
Pick a host (Groq/Together/Bedrock)
Step 2
Fine-tune on brand corpus
Step 3
Deploy via API
Step 4
Govern with PII filters
OpenAI
The default consumer AI; GPT-5.5 reasoning + agents + image.
Anthropic
Best long-context reasoning, writing, and Artifacts.
Native Workspace integration, 2M-token context, Veo + Imagen built in.
xAI
Real-time X data + uncensored research; fastest at breaking news.
Mistral AI
European, multilingual, GDPR-friendly frontier model.
DeepSeek
Open-weight reasoner that matches GPT-5 on math/code at 1/20 cost.